COPPER METAL WILL REACT WITH CONCENTRATED TRIOXONITRATE (V) ACID TO GIVE
January 5, 2024
- A. Cu(NO3)3 + NO + N2O4 + H2O
- B. Cu(NO3)2 + NO + H2O
- C. CuO + NO2 + H2O
- D. Cu(NO3)2 + NO2 + H2O ✓
The answer to the question is: D. Cu(NO3)2+ NO2 + H2O
When copper metal reacts with concentrated trioxonitrate(V) acid (also known as nitric acid), the following reaction occurs:
Cu + 4HNO3 → Cu(NO3)2 + 2NO2 + 2H2O
The reaction between copper metal and concentrated nitric acid is a redox reaction. Nitric acid is a strong oxidizing agent and can oxidize copper metal to form copper(II) nitrate, nitrogen dioxide gas, and water.
This reaction is a classic example of a metal-acid reaction and demonstrates the oxidizing properties of concentrated nitric acid. The red-brown nitrogen dioxide gas that evolves during the reaction is a characteristic feature of this process.
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